Show simple item record

dc.creatorRisvold, A.M.
dc.creatorFonda, R.W.
dc.date.accessioned2007-08-20T23:36:12Z
dc.date.available2007-08-20T23:36:12Z
dc.date.issued2001
dc.identifier.issn0029-344X
dc.identifier.urihttp://hdl.handle.net/2376/966
dc.description.abstractMontane wetlands in the North Cascades, Washington, USA were dominated by small red peat moss (Sphagnum capillifolium), white marshmarigold (Caltha biflora), and many spiked cottongrass (Eriophorum polystachion), the species with highest cover and frequency. Overall, 139 species were recorded in the 24 wetlands studied. Of the common species, nine were distributed independently of margin vs. central expanse locations, eight were more prominent in the margin habitat, and six were more prominent in the central expanse. Species diversity was described by species richness, and by Shannon-Wiener and Simpson's indices. These data were interpreted according to three wetland sizes (<0.5 ha; 0.5-1.5 ha; >1.5 ha) and margin vs. central expanse location. Species richness was significantly correlated with wetland size and was significantly greater in the larger wetlands. The Shannon-Wiener index was significantly correlated with wetland size and was significantly greater in wetland margins vs. central expanse. Simpson's index was unrelated to size or location in the wetland. Habitat heterogeneity in the wetlands was increased by buried logs, where conifer saplings were concentrated, even in the central expanse. North Cascades wetlands were distributed along gradients of elevation, annual precipitation, and degree of water movement. Lower elevation wetlands were characterized by higher annual precipitation and still water, whereas higher elevation wetlands were characterized by lower annual precipitation and moving water.en_US
dc.languageEnglish
dc.publisherWSU Press
dc.rightsIn copyright
dc.rightsopenAccess
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.rights.urihttp://purl.org/eprint/accessRights/OpenAccess
dc.subjectaltitudeen_US
dc.subjectbotanical compositionen_US
dc.subjectprecipitationen_US
dc.subjectsizeen_US
dc.subjectspecies diversityen_US
dc.subjectspecies richnessen_US
dc.subjectwetlandsen_US
dc.titleCommunity composition and floristic relationships in Montane wetlands in the North Cascades, Washington
dc.typeText
dc.description.citationRisvold and Fonda "Community composition and floristic relationships in Montane wetlands in the North Cascades, Washington." Northwest Science. 2001; 75(2): 157-167


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • Northwest Science
    Northwest Science features original research in the basic and applied sciences, with emphasis on the Pacific Northwest region of the United States and Canada.

Show simple item record